Предмет: Математика, автор: DFG900

помогите пожалуйста решить уравнение номер 492 2 уравнение

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Ответы

Автор ответа: Lern

0

2а+123а+97=472
2а+123а=472-97
125а=375
а=375/125
а=3

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Reading

Task 1. Read the text.

Healthy lifestyle

Today healthy lifestyle is becoming more and more popular both with the old and the young. People say that the greatest wealth is health. And it’s so true. The healthier we are, the better we feel. The better we feel, the longer we live.

Keeping fit and going in for sports is also important for our health. Lack of exercise in our life is a serious problem. In big cities people spend hours sitting in front of computers, TV-sets and other gadgets. We walk less because we use cars and public transport. We should visit fitness clubs, go jogging, walk much, swim, go cycling or roller-skating or just dance. Doctors say that regular physical activity is necessary for our body. We must understand the harm of bad habits for our health. Smoking, drinking or taking drugs mean serious illnesses. Cigarettes kill about 3 million heavy-smokers every year.

Getting enough sleep, from 8 to 10 hours daily, are also great healthy habits. Sleep is the food for our brain and the rest for our muscles.

Healthy people live longer, they are more successful and they enjoy their life.

Read the statements and choose T (True), F (False) or DS (doesn’t say)

If the statements are False, correct them.

1. Healthy lifestyle is becoming popular with the young people. _____________________

______________________________________________________________________________[1]

2. Keeping fit and going in for sports is unimportant for our body. ___________________

______________________________________________________________________________[1]

3. People shouldn’t spend hours doing sports __________

______________________________________________________________________________[1]

4. Doctors say that regular physical activity is dangerous for old people. _______________

______________________________________________________________________________[1]

5. Smoking kills about three million heavy-smokers every year. ____________________

______________________________________________________________________________[1]

6. Getting enough sleep means that you should sleep from 12 to 15 hours daily_____________

______________________________________________________________________________[1]

Total [6]

Writing

Look at the pictures and write is it healthy or unhealthy habits and why it’s healthy\unhealthy?

To make sentences use the form of the1-st conditional sentences.

Reasons (причины)

Habits

do regular exercise

eat fruits and vegetables

get enough sleep

eat unhealthy food

smoke, drink or take drugs

• take in more vitamins and minerals

• keeps you feeling full and energized;

• protects us from strokes and heart diseases,

• keep our body fit;

• avoid getting nervous or worried for no reason;

• shorten your life;

• have serious illnesses and even death from lung cancer or liver diseases;

• help control weight, maintain healthy bones, muscles;

If you do regular exercise you will keep our body fit.

1___________________________________________________________________________________[1]

2___________________________________________________________________________________[1]

3___________________________________________________________________________________[1]

4___________________________________________________________________________________[1]

5___________________________________________________________________________________[1]

6__________________________________________________________________________________ [1]

7___________________________________________________________________________________[1]

Total [7]

Total : ___/13

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